So I reactivated. And got told I wasn’t allowed to, ‘cos I’d done it too many times (like about 4). So I get this amazing dialog:

Yes, I have to call a helpline (probably hosted by HeidiSoft in Alpenschwizerpfloangliswurstelikon, where they speak nothing but some bizarre inbred swiss german dialect) (and have no sense of humour) and read out, yes, Fifty-F***ING-FOUR digits.

I’ve no idea how it would actually pan out, because the phone number given doesn’t work, and the help URL on the page before is invalid.